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Primary Reference Standard

When precision matters most, start with the highest benchmark—Primary Reference Standards from Lancetech Ltd are essential for achieving traceable and reproducible results in analytical testing. These ultra-pure substances serve as the definitive reference point for calibrating instruments, verifying methods, and producing secondary standards.


Ideal for pharmaceutical, environmental, and chemical laboratories, our primary standards ensure compliance with global regulatory requirements and support accurate quantification across a wide range of applications. Each standard is backed by detailed documentation and traceability to certified bodies, ensuring your data integrity from the first measurement onward.


Explore our range of primary reference materials and set a solid foundation for your lab’s analytical success.

Fusapyrone 1 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: F032-1MG
Fusapyrone 1 mg CAS number 156856-31-4 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£261.55 £290.61
Fusapyrone 5 mg
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Manufacturer: TOKU-E Item Number: F032-5MG
Fusapyrone 5 mg CAS number 156856-31-4 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£912.78 £1,014.20
Fusarisetin A 0.5 mg
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Manufacturer: TOKU-E Item Number: F033-0.5MG
Fusarisetin A 0.5 mg CAS number 1300041-53-5 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£261.55 £290.61
Fusarisetin A 2.5 mg
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Manufacturer: TOKU-E Item Number: F033-2.5MG
Fusarisetin A 2.5 mg CAS number 1300041-53-5 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£912.78 £1,014.20
Fusidic acid 1 g
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Manufacturer: TOKU-E Item Number: F019-1G
Fusidic acid 1 g CAS number 6990-06-3 and purity 98 .5% - 101 .0%...
Price excludes taxes and shipping charges. Save -10%
£340.55 £378.39
Fusidic acid 100 mg
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Manufacturer: TOKU-E Item Number: F019-100MG
Fusidic acid 100 mg CAS number 6990-06-3 and purity 97 .5% - 101 .0%...
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£71.77 £79.74
Fusidic acid sodium 1 g
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Manufacturer: TOKU-E Item Number: F005-1G
Fusidic acid sodium 1 g CAS number 751-94-0 and purity 97.5%- 101.3%...
Price excludes taxes and shipping charges. Save -10%
£202.79 £225.32
Fusidic acid sodium 5 g
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Manufacturer: TOKU-E Item Number: F005-5G
Fusidic acid sodium 5 g CAS number 751-94-0 and purity 97.5%- 101.3%...
Price excludes taxes and shipping charges. Save -10%
£878.58 £976.20
Fusidic acid sodium 500 mg
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Manufacturer: TOKU-E Item Number: F005-500MG
Fusidic acid sodium 500 mg CAS number 751-94-0 and purity 97.5%- 101.3%...
Price excludes taxes and shipping charges. Save -10%
£110.30 £122.56
G418 Disulfate (Low Endotoxin) 1 g
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Manufacturer: TOKU-E Item Number: G048-1G
G418 Disulfate (Low Endotoxin) 1 g CAS number 108321-42-2 and purity ≥720 Ug/mg...
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£59.72 £66.36
G418 Disulfate (Low Endotoxin) 25 g
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Manufacturer: TOKU-E Item Number: G048-25G
G418 Disulfate (Low Endotoxin) 25 g CAS number 108321-42-2 and purity ≥720 Ug/mg...
Price excludes taxes and shipping charges. Save -10%
£496.13 £551.26
G418 Disulfate (Low Endotoxin) 5 g
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Manufacturer: TOKU-E Item Number: G048-5G
G418 Disulfate (Low Endotoxin) 5 g CAS number 108321-42-2 and purity ≥720 Ug/mg...
Price excludes taxes and shipping charges. Save -10%
£201.83 £224.25
G418 Disulfate 1 g
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Manufacturer: TOKU-E Item Number: G001-1G
G418 Disulfate 1 g CAS number 108321-42-2 and purity ≥720 Ug/mg...
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£45.76 £50.84
G418 Disulfate 100g
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Manufacturer: TOKU-E Item Number: G001-100G
G418 Disulfate 100g CAS number 108321-42-2 and purity ≥720 Ug/mg...
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£1,265.37 £1,405.97
G418 Disulfate 25 g
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Manufacturer: TOKU-E Item Number: G001-25G
G418 Disulfate 25 g CAS number 108321-42-2 and purity ≥720 Ug/mg...
Price excludes taxes and shipping charges. Save -10%
£401.24 £445.82
G418 Disulfate 5 g
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Manufacturer: TOKU-E Item Number: G001-5G
G418 Disulfate 5 g CAS number 108321-42-2 and purity ≥720 Ug/mg...
Price excludes taxes and shipping charges. Save -10%
£137.28 £152.53
G418 Disulfate EvoPure® 1 g
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Manufacturer: TOKU-E Item Number: G030-1G
G418 Disulfate EvoPure® 1 g CAS number 108321-42-2 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£114.16 £126.84
G418 Disulfate EvoPure® 5 g
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Manufacturer: TOKU-E Item Number: G030-5G
G418 Disulfate EvoPure® 5 g CAS number 108321-42-2 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£308.75 £343.06
G418 Disulfate Solution (50 mg/ml in Water) 100 mL
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Manufacturer: TOKU-E Item Number: G021-100ML
G418 Disulfate Solution (50 mg/ml in Water) 100 mL CAS number 108321-42-2 and purity ≥720 Ug/mg...
Price excludes taxes and shipping charges. Save -10%
£263.00 £292.22
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G418 Disulfate Solution (50 mg/ml in Water) 20 mL
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Manufacturer: TOKU-E Item Number: G020-20ML
G418 Disulfate Solution (50 mg/ml in Water) 20 mL CAS number 108321-42-2 and purity ≥720 Ug/mg...
Price excludes taxes and shipping charges. Save -10%
£87.67 £97.41
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Gageostatin A 10 mg
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Manufacturer: TOKU-E Item Number: G063-10MG
Gageostatin A 10 mg CAS number nan and purity ≥ 98.0% (HPLC)...
Price excludes taxes and shipping charges. Save -10%
£110.30 £122.56
Galbinic acid 1 mg
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Manufacturer: TOKU-E Item Number: G089-1MG
Galbinic acid 1 mg CAS number 56691-88-4 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£127.16 £141.29
Galbinic acid 5 mg
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Manufacturer: TOKU-E Item Number: G089-5MG
Galbinic acid 5 mg CAS number 56691-88-4 and purity >95% by HPLC...
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£444.59 £493.99
Galiellalactone 1 mg
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Manufacturer: TOKU-E Item Number: G051-1MG
Galiellalactone 1 mg CAS number 133613-71-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£272.63 £302.92
Galiellalactone 5 mg
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Manufacturer: TOKU-E Item Number: G051-5MG
Galiellalactone 5 mg CAS number 133613-71-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£949.87 £1,055.41
Gamithromycin 25 mg
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Manufacturer: TOKU-E Item Number: G050-25MG
Gamithromycin 25 mg CAS number 145435-72-9 and purity ≥ 95.0%...
Price excludes taxes and shipping charges. Save -10%
£195.56 £217.29
Ganciclovir 100 mg
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Manufacturer: TOKU-E Item Number: G002-100MG
Ganciclovir 100 mg CAS number 82410-32-0 and purity (On Dried Basis): 98.0-102.0%...
Price excludes taxes and shipping charges. Save -10%
£366.56 £407.29
Ganciclovir 50 mg
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Manufacturer: TOKU-E Item Number: G002-50MG
Ganciclovir 50 mg CAS number 82410-32-0 and purity (On Dried Basis): 98.0-102.0%...
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£208.57 £231.74
Ganciclovir ReadyMadeâ„¢ Solution 10 x 1 mL
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Manufacturer: TOKU-E Item Number: G093-10x1ML
Ganciclovir ReadyMade™ Solution 10 x 1 mL CAS number 82410-32-0 and purity nan...
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£131.98 £146.64
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Gatifloxacin sesquihydrate 1 g
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Manufacturer: TOKU-E Item Number: G004-1G
Gatifloxacin sesquihydrate 1 g CAS number 180200-66-2 and purity ≥ 95.5%...
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£72.74 £80.82
Gatifloxacin sesquihydrate 5 g
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Manufacturer: TOKU-E Item Number: G004-5G
Gatifloxacin sesquihydrate 5 g CAS number 180200-66-2 and purity ≥ 95.5%...
Price excludes taxes and shipping charges. Save -10%
£306.83 £340.92
Gefitinib 1 g
Actual product may differ from image
Manufacturer: TOKU-E Item Number: G039-1G
Gefitinib 1 g CAS number 184475-35-2 and purity (On Dried Basis): 98.0-101.0%...
Price excludes taxes and shipping charges. Save -10%
£192.67 £214.08
Gefitinib 100 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: G039-100MG
Gefitinib 100 mg CAS number 184475-35-2 and purity (On Dried Basis): 98.0-101.0%...
Price excludes taxes and shipping charges. Save -10%
£60.70 £67.44
Gefitinib 5 g
Actual product may differ from image
Manufacturer: TOKU-E Item Number: G039-5G
Gefitinib 5 g CAS number 184475-35-2 and purity (On Dried Basis): 98.0-101.0%...
Price excludes taxes and shipping charges. Save -10%
£352.59 £391.77
Geldanamycin 10 mg
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Manufacturer: TOKU-E Item Number: G005-10MG
Geldanamycin 10 mg CAS number 30562-34-6 and purity ≥ 99.0%...
Price excludes taxes and shipping charges. Save -10%
£238.43 £264.92
Geldanamycin 5 mg
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Manufacturer: TOKU-E Item Number: G005-5MG
Geldanamycin 5 mg CAS number 30562-34-6 and purity ≥ 99.0%...
Price excludes taxes and shipping charges. Save -10%
£129.09 £143.43
Geldanamycin ReadyMadeTM Solution 10 x 1 mL
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Manufacturer: TOKU-E Item Number: G095-10x1ML
Geldanamycin ReadyMadeTM Solution 10 x 1 mL CAS number 30562-34-6 and purity ≥99.0%...
Price excludes taxes and shipping charges. Save -10%
£197.49 £219.43
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Geninthiocin 0.5 mg
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Manufacturer: TOKU-E Item Number: G052-0.5MG
Geninthiocin 0.5 mg CAS number 158792-27-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£272.63 £302.92
Geninthiocin 2.5 mg
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Manufacturer: TOKU-E Item Number: G052-2.5MG
Geninthiocin 2.5 mg CAS number 158792-27-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£949.87 £1,055.41
Gentamicin A sulfate EvoPure® 10 mg
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Manufacturer: TOKU-E Item Number: G035-10MG
Gentamicin A sulfate EvoPure® 10 mg CAS number 13291-74-2 and purity >98% by HPLC...
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£364.64 £405.15
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Gentamicin C1 Sulfate EvoPure® 10 mg
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Manufacturer: TOKU-E Item Number: G031-10MG
Gentamicin C1 Sulfate EvoPure® 10 mg CAS number 38539-12-7 and purity >98% by HPLC...
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£666.16 £740.18
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Gentamicin C1a sulfate EvoPure® 10 mg
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Manufacturer: TOKU-E Item Number: G032-10MG
Gentamicin C1a sulfate EvoPure® 10 mg CAS number 37713-04-5; 26098-04-4 (free base) and purity >95% by HPLC...
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£666.16 £740.18
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Gentamicin C2 sulfate EvoPure® 10 mg
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Manufacturer: TOKU-E Item Number: G033-10MG
Gentamicin C2 sulfate EvoPure® 10 mg CAS number 25876-11-3 (free base) and purity >90% by HPLC...
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£666.16 £740.18
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Gentamicin C2a sulfate EvoPure® 10 mg
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Manufacturer: TOKU-E Item Number: G034-10MG
Gentamicin C2a sulfate EvoPure® 10 mg CAS number 38539-12-7; 59751-72-3 (free base) and purity >99% by HPLC...
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£666.16 £740.18
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Gentamicin C2b sulfate EvoPure® 10 mg
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Manufacturer: TOKU-E Item Number: G062-10MG
Gentamicin C2b sulfate EvoPure® 10 mg CAS number 66803-19-8 and purity >99% by HPLC...
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£507.21 £563.57
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Gentamicin ReadyMadeâ„¢ Solution 10 x 1 mL
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Manufacturer: TOKU-E Item Number: G046-10x1ML
Gentamicin ReadyMade™ Solution 10 x 1 mL CAS number 1405-41-1 and purity 50 - 60 mg/ml...
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£75.63 £84.03
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Gentamicin ReadyMadeâ„¢ Solution 20 mL
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Manufacturer: TOKU-E Item Number: G046-20ML
Gentamicin ReadyMade™ Solution 20 mL CAS number 1405-41-0 and purity 50 - 60 mg/ml...
Price excludes taxes and shipping charges. Save -10%
£102.11 £113.46
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Gentamicin Sulfate EP 25 g
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Manufacturer: TOKU-E Item Number: G007-25G
Gentamicin Sulfate EP 25 g CAS number 1405-41-0 and purity (On Dried Basis): ≥ 590 IU/mg ...
Price excludes taxes and shipping charges. Save -10%
£465.79 £517.54
Gentamicin Sulfate EP 5 g
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Manufacturer: TOKU-E Item Number: G007-5G
Gentamicin Sulfate EP 5 g CAS number 1405-41-0 and purity (On Dried Basis): ≥ 590 IU/mg ...
Price excludes taxes and shipping charges. Save -10%
£193.64 £215.15
Gentamicin Sulfate USP 25 g
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Manufacturer: TOKU-E Item Number: G006-25G
Gentamicin Sulfate USP 25 g CAS number 1405-41-0 and purity (on Dried Basis): >590 µg/mL...
Price excludes taxes and shipping charges. Save -10%
£324.65 £360.72
Gentamicin Sulfate USP 5 g
Actual product may differ from image
Manufacturer: TOKU-E Item Number: G006-5G
Gentamicin Sulfate USP 5 g CAS number 1405-41-0 and purity (on Dried Basis): >590 µg/mL...
Price excludes taxes and shipping charges. Save -10%
£96.34 £107.04
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